<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body bgcolor="skyblue">
		<div align="center">
		<h2>梯形的面积</h2><hr>
		<!-- 表格最终提交到路径为ca的servlet页面 -->
		<form action="ca" method="post">
		梯形的上底为:<input type="text" name="up"><br>
		梯形的下底为:<input type="text" name="down"><br>
		梯形的高为:<input type="text" name="height"><br>
		<input type="submit" value="提交">&nbsp;&nbsp;
		<input type="reset" value="重置">
		</form>
		</div>
</body>
</html>
